Settlement and Consolidation Mechanism of Cohesive Sedimentation in Estuarine Environment

Abstract:

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Estuarine area is the intersection zone of river estuary, coastal and land-phase. Cohesive sediment deposition for mutation affects estuary channel transport and brings great challenges to dredging project. Consolidation indicators are closely related to sedimentation and dredging, and there are apparent errors in application of Terzaghi theory in cohesive sediment consolidation evaluation for large stain characteristics. Then it is necessary to modify some consolidation parameters to extend Terzaghi theory in cohesive sediment consolidation. Considering a whole process of sedimentation and consolidation, a unified equation can be established based on sediment deposition and consolidation theory. Equation parameters can be determined by the simulation test (settlement column experiment). According to the settlement curves and volume fraction distribution curves by simulation experiment, modified consolidation coefficient and the trends can be determined, and modified consolidation coefficient can apply in dredging and deposition project.

Info:

Periodical:

Advanced Materials Research (Volumes 261-263)

Edited by:

Jingying Zhao

Pages:

1454-1458

DOI:

10.4028/www.scientific.net/AMR.261-263.1454

Citation:

S. J. Guo et al., "Settlement and Consolidation Mechanism of Cohesive Sedimentation in Estuarine Environment", Advanced Materials Research, Vols. 261-263, pp. 1454-1458, 2011

Online since:

May 2011

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Price:

$35.00

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